2APMJBV4900Smart Phone

User Manual Contents Let’s get started. Getting to know your phone. Key definitions. Screen control Open and switch applications. Home Screen. Switch to sleep mode. Wake up your phone. Make and answer calls. Make a call Answer a call Reject a call End a call Adjust the volume. Turn the speaker on or off Add one call Open the dialing keypad. Contacts. Add new contact Delete contacts. Edit contact details. Search contacts. Add a contact to Favorites. Create a group of contacts. Accounts. Import/Export contacts. Share a contact Messaging. Send messages. Receive messages. Message thread. Settings. Email Set up Email account Send Emails. Check Emails. Gmail Set up an Gmail account for the first time. Send Gmails. Replying to or forwarding email messages in Gmail Network Applications. Network connection. Wi-Fi Browser Bluetooth ® Settings. Airplane mode. Device. Accounts and sync. Language. Date & time. About phone. Experiencing Multimedia. Camera. Music Player Videos Player Gallery. Sound Recorder FM radio. More Applications. File manager Clock. Calculator Calendar Downloads. Maps. Navigation. Manage applications. Install new applications. Uninstall applications. Let’s get started Thanks for choosing the BV4900. It’s a LTE Digital Smart Phone, which we’ll simply call ‘phone’ from now on. Powered by Android TM , the phone supports 4G high-speed internet access, which brings you brand new experiences. To ensure proper phone operation and longevity, please read this guide carefully. And don’t worry if the pictures we use to demonstrate your phone’s functions look a little different from what you see on its screen. It’s the functions they show that matter. This user manual is to introduce the phone’s functions. For detailed precautions, installation descriptions, authentication information, please refer to the Quick Start Guide. Getting to know your phone Key definitions Menu key Touch it to open a menu with items that affect the current screen or application. Home key Touch it to open the home screen. If you’re viewing the left or right extended home screen, Press it to open the central home screen. Back key Touch it to open the previous screen you were working in. If the onscreen keyboard is open, touch it to close the keyboard. Power key Press it to turn on/off the display. Long press it to open a menu with options for Airplane mode, for Silent mode, for Vibration mode, and for powering off and for rebooting the phone. Volumekeys Adjust the volume. Long press it to quickly adjust the ring tone volume to maximum or minimum. Screen control You can control your phone through a series of operations on the screen. - Touch: You can touch the items on the screen to select, to open the applications or to use the keyboard to input characters. - Swipe or slide: Quickly move your finger across the surface of the screen, without pausing when you first touch (so you don't drag something instead). - Touch & hold: You can touch & hold some items to get the item’s available menu. - Drag: You can drag some items on the screen to realize some operations. - Switch between landscape mode and portrait mode: You can switch to the landscape mode by rotating your phone. The landscape mode is only valid under some interfaces, such as the text input interface, the message viewing interface, etc. - Pinch: In some apps (such as Maps and Gallery), you can zoom in and out by placing two fingers on the screen at once and pinching them together (to zoom out) or spreading them apart (to zoom in). Open and switch applications Open and close the All Apps screen On the home screen, touch the icon to open the All Apps screen. You can slide the All Apps screen left or right to view more applications. After opening the All Apps screen, touch an icon to enter the corresponding application. Touch the Back key to return to the previous screen. Touch the Home key to return to the home screen. Switch to a recently used application On the home screen, touch & hold the Homekey, opens a list of thumbnail images of apps you've worked with recently. To open an app, touch it. To remove a thumbnail from the list, swipe it left or right. Home Screen Arrange & work with apps From All Apps, you can: - Explore your widgets: Touch the widgets tab at the top of any All Apps screen. - Get more apps: Touch the Play Store icon at the top of any All Apps screen. Manage notifications - Open notifications panel: When a new notification appears on the notification bar, you can drag the notification bar down from the top of the screen to open notifications panel when your phone has been in idle mode or lock the screen. - Respond to a notification: Touch it. - Dismiss a notification: Swipe it sideways. - Close notifications panel: Drag the tab at the bottom of the notification panel to the top of the screen. Display area The home screen can be extended to exceed the screen’s width in order to provide more space for newly added shortcuts, widgets, etc. On the home screen, slide your finger on the screen to extend to the left or right. Place an app icon on a Home screen Touch & hold the app icon, slide your finger, and lift your finger to drop the icon in place. Delete items on the homepage Touch & hold the app icon, slide your finger toward the top of the screen, and drop the app over the Remove icon. Use folders You can combine several app icons in a folder. Drop one app icon over another on a Home screen, and the two icons will be combined. From any Home screen, you can - Open a folder: Touch it. The folder opens: - Rename a folder: Touch its name. - Move icons around your Home screens: Touch, hold and slide. Favorites tray The app icons you keep in the favorites tray remain visible on every Home screen. - Place an app icon in the Favorites tray: Touch, hold, & slide to move one of the Favorites icons out of the tray. Then use the same technique to move another one into the same position. The All Apps icon in the center is permanent, you can't move it. Chan…

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Shenzhen DOKE Electronic Co., Ltd Long Term Confidentiality Request Letter (2020-12-08) MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR Product: Smart Phone Model No.: BV4900 FCC ID: 2APMJBV4900 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the  Schematic Diagram  Block Diagram  Part List / BOM  Operational Description  Tune-up Procedure  FCC Software Security Requirements for UNII devices Required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Please contact me if there is any information you may need. Sincerely, Aiting Yin / Manager Date/City: 2020-12-08/Shenzhen Phone: 18124004099 Fax: 0755-6668278 E-mail: [email protected]

Shenzhen DOKE Electronic Co., Ltd Short Term Confidentiality Request Letter (2020-12-08) MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Short Term Confidentiality Request For Product: Smart Phone Model No.: BV4900 FCC ID: 2APMJBV4900 To Whom It May Concern: In accordance with sections 0.457 and 0.459 of CFR 47, < Shenzhen DOKE Electronic Co., Ltd >. requests short-term Confidentiality of following sections of this application for a period of 03/08/2021 after grant is issued. Test setup photos External photos Internal photos User’s manual These documents contain detailed system and equipment descriptions and related information about the product, which < Shenzhen DOKE Electronic Co., Ltd > considers to be proprietary, confidential, and a custom design and otherwise, would not release to the general public. Since this design is a basis from which future technological products will evolve, < Shenzhen DOKE Electronic Co., Ltd > feels that this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give our competitors an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Aiting Yin / Manager Date/City: 2020-12-08/Shenzhen Phone: 18124004099 Fax: 0755-6668278 E-mail: [email protected]

FCC ID: 2APMJBV4900 Model Name: BV4900 External Photographs Photo1 Photo2 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo3 Photo4 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo5 Photo6 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo7 Photo8 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo9 Photo10

Label Sample and Label Location

FCC ID: 2APMJBV4900 Model Name: BV4900 Internal Photographs Photo1 Photo2 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo3 Photo4 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo5 Photo6 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo7 Photo8 Use Earphone as FM ANT FCC ID: 2APMJBV4900 Model Name: BV4900 Photo9 Photo10 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo11 Photo12 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo13 Photo14 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo15 Photo16 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo17 Photo18 FCC ID: 2APMJBV4900 Model Name: BV4900 Photo19 Photo20 LTE Div ANT GSM / WCDMA / LTE Main ANT FCC ID: 2APMJBV4900 Model Name: BV4900 Photo21 Photo22 Wi-Fi / BT / GPS ANT NFC ANT

Page 1 of 263 Report No.: STR201103001009E FCC SAR EVALUATION REPORT In accordance with the requirements of FCC 47 CFR Part 2(2.1093), ANSI/IEEE C95.1-1992 and IEEE Std 1528-2013 Product Name： Smart Phone Trademark： Blackview Model Name： BV4900 Family Model： N/A Report No.： STR201103001009E FCC ID： 2APMJBV4900 Prepared for Shenzhen DOKE Electronic Co., Ltd 13th Floor, Weidonglong commercial building B, Meilong avenue, Longhua New District, Shenzhen, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao'an District, Shenzhen 518126 P.R.China. Tel.: 400-800-6106, 0755-3699 5508 Website: http://www.ntek.org.cn Page 2 of 263 Report No.: STR201103001009E TEST RESULT CERTIFICATION Applicant’s name .................. : Shenzhen DOKE Electronic Co., Ltd Address .................................. : 13th Floor, Weidonglong commercial building B, Meilong avenue, Longhua New District, Shenzhen, China Manufacturer's Name ........... : Shenzhen DOKE Electronic Co.,Ltd Address .................................. : 8th floor, building 3, hanhaida science and technology innovation park, yulv village, guangming new district, shenzhen city, guangdong province Product description Product name ......................... : Smart Phone Trademark ............................ : Blackview Model Name ......................... : BV4900 Family Model .......................... : N/A Standards .............................. : FCC 47 CFR Part 2(2.1093) ANSI/IEEE C95.1-1992 IEEE Std 1528-2013 Published RF exposure KDB procedures This device described above has been tested by Shenzhen NTEK. In accordance with the measurement methods and procedures specified in IEEE Std 1528-2013 and KDB 865664 D01. Testing has shown that this device is capable of compliance with localized specific absorption rate (SAR) specified in FCC 47 CFR Part 2(2.1093) and ANSI/IEEE C95.1-1992. The test results in this report apply only to the tested sample of the stated device/equipment. Other similar device/equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. This report shall not be reproduced except in full, without the written approval of Shenzhen NTEK, this document may be altered or revised by Shenzhen NTEK, personal only, and shall be noted in the revision of the document. Date of Test Date (s) of performance of tests ............. : Nov. 06, 2020 ~ Nov. 16, 2020 Date of Issue .......................................... : Nov. 30, 2020 Test Result .............................................. : Pass Prepared By (Test Engineer) : (Cheng Jiawen) Approved By (Lab Manager) : (Alex Li) Page 3 of 263 Report No.: STR201103001009E ※ ※ Revision History ※ ※ REV. DESCRIPTION ISSUED DATE REMARK Rev.1.0 Initial Test Report Release Nov. 30, 2020 Cheng Jiawen Page 4 of 263 Report No.: STR201103001009E TABLE OF CONTENTS 1. General Information ............................................................................................ 6 1.1. RF exposure limits .................................................................................... 6 1.2. Statement of Compliance ........................................................................ 7 1.3. EUT Description ....................................................................................... 7 1.4. Test specification(s) .................................................................................. 9 1.5. Ambient Condition ................................................................................... 9 2. SAR Measurement System ................................................................................. 10 2.1. SATIMO SAR Measurement Set-up Diagram .......................................... 10 2.2. Robot ..................................................................................................... 11 2.3. E-Field Probe .......................................................................................... 12 2.3.1. E-Field Probe Calibration ................................................................. 12 2.4. SAM phantoms ...................................................................................... 13 2.4.1. Technical Data .................................................................................. 14 2.5. Device Holder ........................................................................................ 15 2.6. Test Equipment List ................................................................................ 16 3. SAR Measurement Procedures .......................................................................... 18 3.1. Power Reference ................................................................................... 18 3.2. Area scan & Zoom scan .......................................................................... 18 3.3. Description of interpolation/extrapolation scheme .............................. 20 3.4. Volumetric Scan ..................................................................................... 20 3.5. Power Drift ............................................................................................ 20 4. System Verification Procedure .......................................................................... 21 4.1. Tissue Verification ................................................................................. 21 4.1.1. Tissue Dielectric Parameter Check Results ...................................... 22 4.2. System Verification Procedure .............................................................. 23 4.2.1. System Verification Results .............................................................. 24 5. SAR Measurement variability and uncertainty .................................................. 25 5.1. SAR measurement variability ................................................................. 25 5.2. SAR measurement uncertainty ..........................................…

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Page 160 of 263 Report No.: STR201103001009E 14. Appendix D. Calibration Certificate Table of contents E Field Probe - SN 08/16 EPGO287 750 MHz Dipole - SN 03/15 DIP 0G750-355 835 MHz Dipole - SN 03/15 DIP 0G835-347 1800 MHz Dipole - SN 03/15 DIP 1G800-349 1900 MHz Dipole - SN 03/15 DIP 1G900-350 2450 MHz Dipole - SN 03/15 DIP 2G450-352 2600 MHz Dipole - SN 03/15 DIP 2G600-356 5000-6000 MHz Dipole - SN 13/14 WGA 33 Extended Calibration Certificate Page 161 of 263 Report No.: STR201103001009E Page 162 of 263 Report No.: STR201103001009E Page 163 of 263 Report No.: STR201103001009E Page 164 of 263 Report No.: STR201103001009E Page 165 of 263 Report No.: STR201103001009E Page 166 of 263 Report No.: STR201103001009E Page 167 of 263 Report No.: STR201103001009E Page 168 of 263 Report No.: STR201103001009E Page 169 of 263 Report No.: STR201103001009E Page 170 of 263 Report No.: STR201103001009E Page 171 of 263 Report No.: STR201103001009E Page 172 of 263 Report No.: STR201103001009E Page 173 of 263 Report No.: STR201103001009E Page 174 of 263 Report No.: STR201103001009E Page 175 of 263 Report No.: STR201103001009E Page 176 of 263 Report No.: STR201103001009E Page 177 of 263 Report No.: STR201103001009E Page 178 of 263 Report No.: STR201103001009E Page 179 of 263 Report No.: STR201103001009E Page 180 of 263 Report No.: STR201103001009E Page 181 of 263 Report No.: STR201103001009E Page 182 of 263 Report No.: STR201103001009E Page 183 of 263 Report No.: STR201103001009E Page 184 of 263 Report No.: STR201103001009E Page 185 of 263 Report No.: STR201103001009E

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Page 240 of 263 Report No.: STR201103001009E Page 241 of 263 Report No.: STR201103001009E Page 242 of 263 Report No.: STR201103001009E Page 243 of 263 Report No.: STR201103001009E Page 244 of 263 Report No.: STR201103001009E Page 245 of 263 Report No.: STR201103001009E Page 246 of 263 Report No.: STR201103001009E Page 247 of 263 Report No.: STR201103001009E Page 248 of 263 Report No.: STR201103001009E Page 249 of 263 Report No.: STR201103001009E Page 250 of 263 Report No.: STR201103001009E <Justification of the extended calibration> If dipoles are verified in return loss (<-20dB, within 20% of prior calibration for below 3GHz, and <-8dB, within 20% of prior calibration for 5GHz to 6GHz), and in impedance (within 5 ohm of prior calibration), the annual calibration is not necessary and the calibration interval can be extended. <Head 750MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -35.83 - 51.3 - Apr. 19, 2018 -35.948 0.329 51.314 0.014 Apr. 18, 2019 -35.975 0.405 51.341 0.041 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 251 of 263 Report No.: STR201103001009E <Body 750MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -32.65 - 50.8 - Apr. 19, 2018 -32.051 1.835 51.838 1.038 Apr. 18, 2019 -32.075 1.761 51.817 1.017 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 252 of 263 Report No.: STR201103001009E <Head 835MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -23.67 - 56.8 - Apr. 19, 2018 -23.947 1.17 56.615 0.185 Apr. 18, 2019 -23.920 1.056 56.632 0.168 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 253 of 263 Report No.: STR201103001009E <Body 835MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -27.64 - 53.5 - Apr. 19, 2018 -27.789 0.54 53.734 0.234 Apr. 18, 2019 -27.735 0.344 53.747 0.247 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 254 of 263 Report No.: STR201103001009E <Head 1800MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -26.62 - 47.3 - Apr. 19, 2018 -25.8 3.080 45.156 2.144 Apr. 18, 2019 -25.880 2.780 45.246 2.054 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 255 of 263 Report No.: STR201103001009E <Body 1800MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -27.86 - 46.2 - Apr. 19, 2018 -27.017 3.026 44.51 1.69 Apr. 18, 2019 -27.027 2.990 44.32 1.88 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 256 of 263 Report No.: STR201103001009E <Head 1900MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -25.15 - 52.6 - Apr. 19, 2018 -23.144 7.976 53.604 1.004 Apr. 18, 2019 -23.923 4.879 53.344 0.744 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 257 of 263 Report No.: STR201103001009E <Body 1900MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -22.99 - 47.6 - Apr. 19, 2018 -22.679 1.353 49.311 1.711 Apr. 18, 2019 -22.690 1.305 49.385 1.785 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 258 of 263 Report No.: STR201103001009E <Head 2450MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -28.15 - 53.9 - Apr. 19, 2018 -26.296 6.586 54.99 1.09 Apr. 18, 2019 -26.456 6.018 54.65 0.75 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 259 of 263 Report No.: STR201103001009E <Body 2450MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -22.99 - 57.6 - Apr. 19, 2018 -20.498 10.840 56.16 1.44 Apr. 18, 2019 -20.445 11.07 56.26 8.66 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 260 of 263 Report No.: STR201103001009E <Head 2600MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -20.85 - 54.9 - Apr. 19, 2018 -21.627 3.727 54.412 0.488 Apr. 18, 2019 -21.660 3.885 54.470 0.43 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration; the impedance is within 5 ohm of prior calibration. Therefore the verification result should support extended calibration. Dipole Verification Data Page 261 of 263 Report No.: STR201103001009E <Body 2600MHz> Return Loss (dB) Delta (%) Impedance Delta(ohm) Date of Measurement -23.23 - 50.6 - Apr. 19, 2018 -22.966 1.136 49.629 0.971 Apr. 18, 2019 -22.959 1.1666 49.865 0.735 Apr. 17, 2020 The return loss is <-20dB, within 20% of prior calibration;…

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Report No.: STR201103001002E Version.1.3 Page 1 of 61 RADIO TEST REPORT FCC ID: 2APMJBV4900 Product: Smart Phone Trade Mark: Blackview Model No.: BV4900 Family Model: N/A Report No.: STR201103001002E Issue Date: 28 Nov. 2020 Prepared for Shenzhen DOKE Electronic Co., Ltd 13th Floor, Weidonglong commercial building B, Meilong avenue, Longhua New District, Shenzhen, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China Tel. 400-800-6106, 0755-3699 5508 Website: http://www.ntek.org.cn Report No.: STR201103001002E Version.1.3 Page 2 of 61 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 4 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 5 3.1 FACILITIES..................................................................................................................................................... 5 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 5 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 6 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 8 6 SETUP OF EQUIPMENT UNDER TEST ........................................................................................................... 9 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ....................................................................... 9 6.2 SUPPORT EQUIPMENT ............................................................................................................................... 10 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 11 7 TEST REQUIREMENTS .................................................................................................................................... 13 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 13 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 16 7.3 6DB BANDWIDTH ....................................................................................................................................... 25 7.4 DUTY CYCLE ............................................................................................................................................... 26 7.5 PEAK OUTPUT POWER .............................................................................................................................. 28 7.6 POWER SPECTRAL DENSITY ................................................................................................................... 29 7.7 CONDUCTED BAND EDGE MEASUREMENT......................................................................................... 31 7.8 SPURIOUS RF CONDUCTED EMISSIONS ................................................................................................ 32 7.9 ANTENNA APPLICATION .......................................................................................................................... 33 8 TEST RESULTS ................................................................................................................................................... 34 1M .............................................................................................................................................................................. 34 2M …

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